Results 31 to 40 of about 3,148 (267)

Spectral-Element Simulation of the Turbulent Flow in an Urban Environment

Applied Sciences, 2021
The mean flow and turbulence statistics of the flow through a simplified urban environment, which is an active research area in order to improve the knowledge of turbulent flow in cities, is investigated.
Maxime Stuck, Alvaro Vidal, Pablo Torres, Hassan M. Nagib, Candace Wark, Ricardo Vinuesa   +5 more
doaj   +1 more source

Turbulence spreading and anomalous diffusion on combs

Physical Review E
This paper presents a simple model for such processes as chaos spreading or turbulence spillover into stable regions. In this simple model the essential transport occurs via inelastic resonant interactions of waves on a lattice. The process is shown to result universally in a subdiffusive spreading of the wave field.
Alexander V. Milovanov, Alexander Iomin, Jens Juul Rasmussen   +2 more
openaire   +4 more sources

Electrospun Wood‐Derived Biopolymers as Electrodes in Electrochemical Energy Storage Technologies

Advanced Functional Materials, EarlyView.
Electrospinning transforms wood‐derived cellulose and lignin into architecturally defined, binder‐free carbon electrodes with tuneable porosity and functionality. This review shows how fibre design enables decoupled charge and mass transport, enhancing performance across battery systems, while identifying key challenges in spinnability, scalability ...
Michael W. Thielke, Hattie R. Chisnall, Jesus Vazquez Chavez, Ana B. Jorge Sobrido   +3 more
wiley   +1 more source

High range free space optic transmission using new dual diffuser modulation technique

EPJ Web of Conferences, 2017
Free space optical communication fsoc is vulnerable with fluctuating atmospheric. This paper focus analyzes the finding of new technique dual diffuser modulation (ddm) to mitigate the atmospheric turbulence effect.
Rahman A.K, Julai N, Jusoh M, Rashidi C.B.M., Aljunid S.A, Anuar M.S, Talib M.F, Zamhari Nurdiani, Sahari S.k, Tamrin K.F., Jong Rudiyanto P., Zaidel D.N.A, Mohtadzar N.A.A, Sharip M.R.M, Samat Y.S   +14 more
doaj   +1 more source

Bioinspired Adaptive Surfaces for Intelligent Liquid Manipulation: Progressing From Passive and Active to Hybrid Strategies

Advanced Materials, EarlyView.
This review examines passive, active, and hybrid liquid manipulation strategies, highlighting hybrid approaches as an emerging route to reconcile energy efficiency with adaptive control. By actively reconstructing passive surfaces to store programmable interfacial energy, hybrid systems enable flexible yet low‐power liquid transport, with perspectives ...
Jiaqi Miao, Yiyuan Zhang, Liqiu Wang, Alan C. H. Tsang   +3 more
wiley   +1 more source

Breaking the Surface: Buoyant Metal–Polymer Open–Cell Hybrid Lattice Metamaterials

Advanced Materials, EarlyView.
Open‐cell metal–polymer lattice metamaterials that defy sinking. (a) Injection process of the polyurethane (PU) foam into the titanium (Ti‐6Al‐4V) hollow‐strut lattice creating the open‐cell Ti‐6Al‐4V+PU hybrid lattice, (b) flotation test of a hybrid lattice specimen, and (c) a digital representation and experimental validation of a marine buoy ...
Jordan Noronha, Joey Tallon, Raad Omar, Jason Dash, Andrey Molotnikov, Martin Leary, Milan Brandt, Ma Qian   +7 more
wiley   +1 more source

Turbulence spreading induced vortex flow generation in a magnetic island

Nuclear Fusion
We derive a self-consistent relation between turbulence spreading flux and vortex flow acceleration for time-stationary turbulence inside a magnetic island (MI) by extending the Charney-Drazin momentum theorem.
E.S. Yoon, T.S. Hahm, G.J. Choi, Y.W. Cho, A. Ishizawa, M.J. Choi, J.M. Kwon   +6 more
doaj   +1 more source

In Situ Two‐Dimensional Residual Stress Characterization of Thin Films

Advanced Materials Technologies, EarlyView.
An integrated in situ curvature metrology platform combining speckle‐based curvature optical metrology (SCOM) with multi‐beam optical sensors (MOS) enables spatially resolved two‐dimensional curvature mapping of thick sputtered coatings. The SCOM technique provides excellent agreement with MOS while providing an extended measurable curvature range ...
Wai Jue Tan, Wadwan Singhapong, Arindam Majhi, Chris Bowen, Alexander J.G. Lunt, Hongchang Wang, Kawal Sawhney   +6 more
wiley   +1 more source

Effect of resonant magnetic perturbation on edge–core turbulence spreading in a tokamak plasma

Nuclear Fusion
Turbulence spreading from the edge to the core region of a tokamak with a resonant magnetic perturbation (RMP) is investigated using an electromagnetic Landau-fluid model in a toroidal geometry.
Guangzhi Ren, Lai Wei, Jiquan Li, Zheng-Xiong Wang   +3 more
doaj   +1 more source

Beam intensity and spectral coherence of Hermite-cosine-Gaussian rectangular multi-Gaussian correlated Schell-model beam in oceanic turbulence

Heliyon, 2023
The beam spreading and evolution behavior of a partially coherent, Hermite-cosine-Gaussian (HcosG) rectangular multi-Gaussian correlated Schell-model beam propagating in oceanic turbulence is studied. Analytical expressions for the cross-spectral density
Xu Wu, Chuang Wang, Yuhui Kong, Kenan Wu
doaj   +1 more source